Crank



FIG. 1 is a top-front isometric view of a crank according to our design;

FIG. 2 is a bottom-rear isometric view of the crank of FIG. 1;

FIG. 3 is a top view of the crank of FIG. 1;

FIG. 4 is a bottom view of the crank of FIG. 1;

FIG. 5 is a side view of the crank of FIG. 1;

FIG. 6 is a front view of the crank of FIG. 1; and,

FIG. 7 is a rear view of the crank of FIG. 1.

The broken lines shown represent unclaimed subject matter and form no part of the claimed design. 

CLAIM The ornamental design for a crank, as shown and described. 